Technical data

Alvarion Hardware
LEDs
A set of three function (or mode) indicators are located on the front
panel. These consist of colored LEDs configured to illuminate as
described in the Indicators section, page 3-2.
Input / Output Message Format
Three RS-232 communication interfaces are available from the GPS
Receiver, a time output port, a Command port, and a CDU port. The
Time of Day channel is a uni-directional output, with the PC
report/control port being bi-directional. The defaults are as follows;
Baud Rate 9600
Parity None
Stop Bits 1
Start bits 1
Data bits 8
The GPS Receiver may be configured, and will report both status and
satellite conditions via the CDU port, utilizing an upgraded TSIP
protocol.
Time of Day Output
The RS-232 Time of Day port will output the following message once
every second. Messages will continue to be output during a loss of sync,
providing the output clocks are valid. The message is in ASCII, starting
more than 1 microsecond, and less than 5 milliseconds, from the
leading edge of the 1 PPS output.
Electrical Safety
This equipment has been designed and tested to meet the following
safety specifications:
 EN 60950
 UL 60950
GPS Timing Receiver Installation and Operation Manual
1-7